AI Feature, Proven
$12,000 to $25,000·4 to 6 weeks
One production AI feature integrated into your existing app, delivered with an evaluation harness that proves it works. Feature design and implementation, LLM API or on-device ML integration, a defined test set with correct answers set in advance, agreement scoring, iteration, regression tracking, and a written evaluation report you own.
Most people shipping AI features cannot tell you whether the output is correct. I build the feature and I build the proof.
Android Modernize and Comply
$8,000 to $20,000·3 to 5 weeks
Target API 36 migration, Google Play Billing Library 8 migration, Java to Kotlin conversion of core modules, XML Views to Jetpack Compose on primary screens, dependency and Gradle cleanup, and a build that passes Play review.
As of August 31, 2026, apps that do not target API 36 stop reaching new users on Google Play. Extensions run to November 1. If you missed the date, that is the window we are working in.
App Rescue
$500 audit, credited toward the build·3-day turnaround
Your developer disappeared, the agency stopped answering, or the build stalled. Full source review, a written assessment of code quality, architecture and store-readiness, what is broken and what is missing, and a fixed-price quote to finish it.
Three days to know where you stand. Fixed price, so you are not billed by the hour by someone you have not worked with yet.